Patent SG-11201811082S-A (SG)
Title: Method and device for generating injectable foam
Inventor: BALFOUR CAROL SUZANNE
IPC: A61B17/12
Filed: 2017-07-26
Abstract: FigureA W O 20 18/0 20 436 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 01 February 2018 (01.02.2018) WIP0 I PCT Iiiimmomiolollmonoloomoitimmlloolliflom oimIE (10) International Publication Number WO 2018/020436 Al (51) International Patent Classification: A61B 17/00 (2006.01) A61J 3/00 (2006.01) A61B 17/12 (2006.01) (21) International Application Number: PCT/IB2017/054537 (22) International Filing Date: 26 July 2017 (26.07.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1612925.6 26 July 2016 (26.07.2016) GB (71) Applicant: PROVENSIS LIMITED [GB/GB]; 5 Fleet Place, London EC4M 7RD (GB). (72) Inventors: BALFOUR, Carol Suzanne; C/O BTG Inter- national Limited, 5 Fleet Place, London EC4M 7RD (GB). FAULKNER, David Ian; C/O BTG International Limited, 5 Fleet Place, London EC4M 7RD (GB). MOSS, Stafford Guy; C/O BTG International Limited, 5 Fleet Place, Lon- don EC4M 7RD (GB). WYSS, Thomas; C/O BTG Inter- national Limited, 5 Fleet Place, London EC4M 7RD (GB). FAITHFULL, Rex; C/O BTG International Limited, 5 Fleet Place, London EC4M 7RD (GB). (74) Agent: MCANALLY, Gerard; BTG International Limit- ed, 5 Fleet Place, London EC4M 7RD (GB). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: METHOD AND DEVICE FOR GENERATING INJECTABLE FOAM (57) : The present invention relates to methods and devices for production of in- jectable foams, such as those used in the treatment of varicose veins and other venous disor- ders. The method requires the delivery or supply of foamable liquid sclerosing agent and a suitable gas or a gas mixture to a foam producing structure in which the liquid and gas are combined to produce foam, wherein the liquid is delivered independently of the delivery of gas. Devices for producing injectable foam comprise a foam producing structure in which liq- uid and gas are combined to produce foam, the structure comprising an inlet for liquid and gas and an outlet for foam; a liquid pathway in communication with the inlet; and a gas pathway in communication with the inlet, characterised in that the liquid pathway comprises a means for delivering liquid through the liquid pathway independently of gas delivery through the gas pathway. In preferred embodiments, the delivery of liquid and/or gas is controlled with volumetric pumps.